What's the difference? Dennis Dutton (link fixed) says that when human intelligence produces something useful it's craft, and art if it's (edited) emotionally stimulating but otherwise (end edit) useless. The more relevant distinction might be Brian Price on 'armouring': an art, in any medium, attempts to convey a message to an audience; craft is the skilled use of technique, hence the term â€˜craftsmanship'. Perhaps that is why some umpires 'go to pieces' when being watched for assessment or coaching. Normally their umpiring craftsmanship is to give the players a good fair game. But when they are watched, some effort gets diverted into the art - to convey a message that this umpire is worth promoting - to the detriment of the craft. When FHF umpiring discussions get heated, is it because some contributors are treating umpiring as a science? By the way, you can change your vote later if you want.